Hives injections are usually useful, especially for more severe hives, which can be treated by applying intravenous injections. Usually for milder hives, they are usually treated first with oral anti-allergy medications, such as cetirizine or loratadine. For severe urticaria, you can choose the appropriate medication under the guidance of the doctor, such as intravenous dexamethasone sodium phosphate injection and calcium gluconate, and also intravenous vitamin C for rehydration supportive therapy. Therefore, if urticaria must be timely to the regular hospital dermatology consultation, with the doctor’s treatment, do not do it on their own, so as not to delay the condition, causing adverse consequences.